SE500818C2 - Method and apparatus for preventing intrusion - Google Patents
Method and apparatus for preventing intrusionInfo
- Publication number
- SE500818C2 SE500818C2 SE9300467A SE9300467A SE500818C2 SE 500818 C2 SE500818 C2 SE 500818C2 SE 9300467 A SE9300467 A SE 9300467A SE 9300467 A SE9300467 A SE 9300467A SE 500818 C2 SE500818 C2 SE 500818C2
- Authority
- SE
- Sweden
- Prior art keywords
- sound
- frequency
- fundamental frequency
- building
- signals
- Prior art date
Links
Classifications
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01M—CATCHING, TRAPPING OR SCARING OF ANIMALS; APPARATUS FOR THE DESTRUCTION OF NOXIOUS ANIMALS OR NOXIOUS PLANTS
- A01M29/00—Scaring or repelling devices, e.g. bird-scaring apparatus
- A01M29/16—Scaring or repelling devices, e.g. bird-scaring apparatus using sound waves
-
- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B15/00—Identifying, scaring or incapacitating burglars, thieves or intruders, e.g. by explosives
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Birds (AREA)
- Engineering & Computer Science (AREA)
- Insects & Arthropods (AREA)
- Pest Control & Pesticides (AREA)
- Wood Science & Technology (AREA)
- Zoology (AREA)
- Environmental Sciences (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Burglar Alarm Systems (AREA)
- Building Environments (AREA)
- Soundproofing, Sound Blocking, And Sound Damping (AREA)
Abstract
Description
15 20 25 30 35 500 818 2 signaler med från en grundfrekvens periodiskt succesivt stigande och tillbaka till grundfrekvensen abrubt avtagande frekvens. 15 20 25 30 35 500 818 2 signals with from a fundamental frequency periodically successively rising and back to the fundamental frequency abruptly decreasing frequency.
Enligt ytterligare en utföringsform av uppfinningen ändras grundfrekvensen för ljudsignalerna efter vissa tids- intervall. Härigenom undviker man risken för att någon med hjälp av en motljudsgenerator släcker ut ljudsignalerna.According to a further embodiment of the invention, the fundamental frequency of the audio signals changes after certain time intervals. This avoids the risk of someone switching off the audio signals with the help of a sound generator.
Enligt ytterligare en utföringsform av uppfinningen utnyttjas en fasförskjutning av frekvensvariationen av i storleksordningen millisekunder mellan de olika signalerna.According to a further embodiment of the invention, a phase shift of the frequency variation of the order of milliseconds between the different signals is used.
Enligt ytterligare en utföringsform av uppfinningen används en ljudstyrka av 110 dB och uppåt.According to a further embodiment of the invention, a volume of 110 dB and up is used.
Enligt ytterligare en utföringsform av uppfinningen utnyttjas ljudsignaler från minst fyra ljudgivare. Härigenom utnyttjar man det faktum att hörselorganen hos människan eventuellt kan uthärda tre frekvenser samtidigt via skydds- mekanismerna, men att man inte uthärdar ytterligare samtidiga ljudsignaler med olika frekvens.According to a further embodiment of the invention, sound signals from at least four sound sensors are used. This takes advantage of the fact that the human auditory organs can possibly withstand three frequencies simultaneously via the protection mechanisms, but that no additional simultaneous sound signals with different frequencies are not tolerated.
Uppfinningen omfattar också en anordning för genomförande av sättet enligt uppfinningen, som kännetecknas av att den omfattar ljudgivare med styrorgan för alstrande av ljud- signaler med periodiskt varierande frekvens med frekvens- variation fasförskjuten utsändes från flera ljudgivare, varvid ljudgivarna är så anordnade att ljudvågorna från ljud- givarna möter varandra inom det område som skall skyddas.The invention also comprises a device for carrying out the method according to the invention, which is characterized in that it comprises sound sensors with control means for generating sound signals with periodically varying frequency with frequency variation phase shifted from several sound sensors, the sound sensors being arranged so that the sound waves from sound the donors meet in the area to be protected.
Enligt en utföringsform av anordningen enligt uppfin- ningen omfattar anordningen minst 4 ljudgivare.According to an embodiment of the device according to the invention, the device comprises at least 4 sound sensors.
Beskrivning av föredragna utföringsformer Uppfinningen kommer nu att beskrivas mer i detalj i samband med den för närvarande föredragna utföringsformen.Description of Preferred Embodiments The invention will now be described in more detail in connection with the presently preferred embodiment.
Avsikten med uppfinningen är att ljudgivarna vid aktive- ring via någon form av indikeringsorgan, såsom IR-detektor, skall avge ljudsignaler så avstämda att den totala ljudeffek- ten får en inkräktare att omedelbart avlägsna sig ut ur ljudområdet.The object of the invention is that the sound sensors, when activated via some form of indicating means, such as an IR detector, shall emit sound signals so tuned that the total sound effect causes an intruder to immediately move out of the sound area.
Vid aktiveringen avger ljudgivarna, som enligt den föredragna utföringsformen är minst fyra till antalet, ljudsignaler med en ljudstyrka av företrädesvis 110 dB och uppåt med en periodiskt varierande frekvens med frekvens- 10 15 20 25 30 35 500 818 3 variationen fasförskjuten. Ljudsignalerna har en frekvens som stiger successivt från en grundfrekvens upp till en topp- frekvens för att abrubt återgå till grundfrekvensen. Detta upprepas oavbrutet när larmet är igång. Fasförskjutningen av frekvensvariationen är av i storleksordningen millisekunder, d.v.s. tidpunkten då det att en andra signal ligger på grundfrekvensen ligger ett antal millisekunder efter den tidpunkt då en första signal ligger på grundfrekvensen, osv.Upon activation, the sound sensors, which according to the preferred embodiment are at least four in number, emit sound signals with a volume of preferably 110 dB and upwards with a periodically varying frequency with the frequency offset. The audio signals have a frequency that rises gradually from a fundamental frequency up to a peak frequency in order to abruptly return to the fundamental frequency. This is repeated continuously when the alarm is on. The phase shift of the frequency variation is of the order of milliseconds, i.e. the time when a second signal is at the fundamental frequency is a number of milliseconds after the time when a first signal is at the fundamental frequency, and so on.
Detta innebär att med fyra ljudgivare hela tiden fyra olika ljudsignaler ljuder, vilket upplevs som outhärdligt och vistelse i detta ljud leder omedelbart till fysiska symptom som illamående och smärta i bröstet. Symptomen avtar inom några timmar och några kvarstående problem har ej kunnat påvisas.This means that with four sound sensors four different sound signals are constantly sounding, which is perceived as unbearable and staying in this sound immediately leads to physical symptoms such as nausea and chest pain. The symptoms subside within a few hours and no remaining problems have been identified.
Utan att för den skull binda oss till någon vetenskaplig förklaring förefaller fenomenet kunna förklaras enligt följande. Örats skyddsmekanismer kan skydda hörselorganen från skadliga ljud vid åtminstone två olika frekvenser. Vid ljud på tre frekvenser upplevs obehag, men åtminstone vissa personer kan fördra detta viss tid. Motsvarande ljud på fyra frekvenser kan dock inte örats skyddsmekanismer försvara sig mot, vilket leder till de ovan omtalade symptomen.Without for that reason binding us to any scientific explanation, it seems that the phenomenon can be explained as follows. The ear protection mechanisms can protect the hearing organs from harmful sounds at at least two different frequencies. With sound on three frequencies, discomfort is experienced, but at least some people can tolerate this for some time. Corresponding sounds on four frequencies, however, the ear's protection mechanisms cannot defend themselves against, which leads to the symptoms mentioned above.
Ett lämpligt arrangemang av ljudgivare för genomförande av sättet enligt uppfinningen för skydd av ett rum innefattar längs motstående begränsningsväggar uppsatta ljudgivare riktade mot varandra på sådant sätt att ljudvågorna möts mitt i rummet. Exempelvis kan fyra bredvid varandra anordnade ljudgivare sitta på varje sida. Härvid bildas en matta av ljud inom vilken ingen kan vistas utan stora obehag.A suitable arrangement of sound sensors for carrying out the method according to the invention for protecting a room comprises sound sensors arranged along opposite boundary walls directed towards each other in such a way that the sound waves meet in the middle of the room. For example, four sound sensors arranged next to each other can sit on each side. This creates a carpet of noise within which no one can stay without great discomfort.
För att undvika att någon med hjälp av motljudgenerator släcker ut ljudet ändras enligt den föredragna utförings- formen grundfrekvensen med vissa tidsintervall, t.ex. var tionde sekund.In order to avoid that someone with the aid of a sound generator generates the sound, according to the preferred embodiment the basic frequency is changed with certain time intervals, e.g. every ten seconds.
Elektroniken som erfordras för styrning av ljudgivarna och deras inbördes förhållande bygger på känd teknik som varje fackman på området behärskar, och utgör inte någon del av föreliggande uppfinning, och den beskrivs därför inte närmare.The electronics required to control the sound transmitters and their interrelationships are based on prior art which is skilled in the art, and do not form part of the present invention, and are therefore not described in more detail.
Claims (10)
Priority Applications (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SE9300467A SE500818C2 (en) | 1993-02-12 | 1993-02-12 | Method and apparatus for preventing intrusion |
AU61182/94A AU6118294A (en) | 1993-02-12 | 1994-02-02 | Method and means for preventing trespassing |
JP6517942A JPH08506672A (en) | 1993-02-12 | 1994-02-02 | Method and device for preventing intrusion |
PCT/SE1994/000078 WO1994018650A1 (en) | 1993-02-12 | 1994-02-02 | Method and means for preventing trespassing |
US08/492,072 US5714926A (en) | 1993-02-12 | 1994-02-02 | Method and means for preventing trespassing |
EP94907741A EP0788644A1 (en) | 1993-02-12 | 1994-02-02 | Method and means for preventing trespassing |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SE9300467A SE500818C2 (en) | 1993-02-12 | 1993-02-12 | Method and apparatus for preventing intrusion |
Publications (3)
Publication Number | Publication Date |
---|---|
SE9300467D0 SE9300467D0 (en) | 1993-02-12 |
SE9300467L SE9300467L (en) | 1994-08-13 |
SE500818C2 true SE500818C2 (en) | 1994-09-12 |
Family
ID=20388873
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SE9300467A SE500818C2 (en) | 1993-02-12 | 1993-02-12 | Method and apparatus for preventing intrusion |
Country Status (6)
Country | Link |
---|---|
US (1) | US5714926A (en) |
EP (1) | EP0788644A1 (en) |
JP (1) | JPH08506672A (en) |
AU (1) | AU6118294A (en) |
SE (1) | SE500818C2 (en) |
WO (1) | WO1994018650A1 (en) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
AU3941395A (en) * | 1995-03-07 | 1996-09-23 | Lars Stahl | A device for generating sound |
SE513123C2 (en) * | 1998-02-17 | 2000-07-10 | Multisound Technology Mst Ab | Sound-generating shock device for mastering crowds or individuals |
US20060174533A1 (en) * | 2004-10-06 | 2006-08-10 | Nature Technologies, Inc. | Animal repellent system |
WO2013144676A1 (en) | 2012-03-26 | 2013-10-03 | Volacom Ad | Animal collision avoidance system |
Family Cites Families (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3636559A (en) * | 1968-11-18 | 1972-01-18 | Rat Elimination System Ltd The | Ultrasonic rat elimination system having random modulation |
US3612211A (en) * | 1969-07-02 | 1971-10-12 | William T Clark | Method of producing locally occurring infrasound |
US3893106A (en) * | 1973-10-10 | 1975-07-01 | Hayward Trustee H Dutton | Electronic pest-control device having plural ultrasonic generators |
US3872472A (en) * | 1973-12-11 | 1975-03-18 | Robert G Moschgat | Ultrasonic system for repelling noxious fauna |
US4001817A (en) * | 1974-10-23 | 1977-01-04 | American Electronics Corporation | Ultrasonic rodent control device and method |
US4186387A (en) * | 1976-11-04 | 1980-01-29 | Micro-Sonics, Inc. | Ultrasonic pest repellent method and system |
US4386341A (en) * | 1981-06-04 | 1983-05-31 | Yujiro Yamamoto | Security apparatus with audible alarm of enhanced urgency |
US4484315A (en) * | 1982-09-20 | 1984-11-20 | Gary L. Hal | Ultrasonic pest control device |
JPS602134A (en) * | 1983-06-17 | 1985-01-08 | 早川 英雄 | Threat device of harmful animal |
FR2556485A1 (en) * | 1983-10-14 | 1985-06-14 | Badens Gerard | Device intended to cause intruders (human or small rodents) to depart from a premises protected by the device, capable of being used as an anti-theft or anti-rat device, by emitting a sound which is inaudible outside the premises |
GB2166277B (en) * | 1984-10-31 | 1988-06-15 | Demion Electronic Company Limi | Sonic pest control apparatus |
DE3504272A1 (en) * | 1985-02-08 | 1986-08-14 | Battelle-Institut E.V., 6000 Frankfurt | METHOD AND DEVICE FOR BIRD COMBAT |
US4965552A (en) * | 1989-07-17 | 1990-10-23 | Price Charles S | Electronic animal repellant apparatus |
SE9102920D0 (en) * | 1991-10-09 | 1991-10-09 | Dick Edvinsson | ALARM |
US5278537A (en) * | 1992-07-27 | 1994-01-11 | Winner International Corporation | Electronic alarm for avoiding collision with animals in a non-destructive manner |
-
1993
- 1993-02-12 SE SE9300467A patent/SE500818C2/en not_active IP Right Cessation
-
1994
- 1994-02-02 WO PCT/SE1994/000078 patent/WO1994018650A1/en not_active Application Discontinuation
- 1994-02-02 AU AU61182/94A patent/AU6118294A/en not_active Abandoned
- 1994-02-02 EP EP94907741A patent/EP0788644A1/en not_active Withdrawn
- 1994-02-02 US US08/492,072 patent/US5714926A/en not_active Expired - Lifetime
- 1994-02-02 JP JP6517942A patent/JPH08506672A/en active Pending
Also Published As
Publication number | Publication date |
---|---|
SE9300467L (en) | 1994-08-13 |
JPH08506672A (en) | 1996-07-16 |
AU6118294A (en) | 1994-08-29 |
SE9300467D0 (en) | 1993-02-12 |
WO1994018650A1 (en) | 1994-08-18 |
EP0788644A1 (en) | 1997-08-13 |
US5714926A (en) | 1998-02-03 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US4450436A (en) | Acoustic alarm repeater system | |
US3701024A (en) | Local and national warning alarm system | |
US6201470B1 (en) | Locating devices | |
EP0390123A3 (en) | Nondirectional acoustic generator and speaker system | |
DE69522721D1 (en) | MECHANICAL SIGNAL PROCESSOR BASED ON MICROMECHANICAL OSCILLATORS AND INTELLIGENT ACOUSTIC DETECTORS AND SYSTEMS BASED ON THEM | |
CA2164562A1 (en) | Universal mounting plate for audible-visual alarms | |
CA2296414A1 (en) | Method for electronically selecting the dependency of an output signal from the spatial angle of acoustic signal impingement and hearing aid apparatus | |
WO2006003174A3 (en) | Deployable audible protection system | |
JPS62285088A (en) | Underground sound locater having at least one three-component geophone detector | |
SE500818C2 (en) | Method and apparatus for preventing intrusion | |
US20080144838A1 (en) | Tamper resistant audio sound level detector and informative device | |
US4571586A (en) | Alarm console controls | |
US20020135491A1 (en) | Electronically controlled multi-tone peripheral | |
EP0614560B1 (en) | Method and means for preventing trespassing | |
US3364477A (en) | Vault alarm system | |
US4887072A (en) | Alarm apparatus | |
KR102297442B1 (en) | Method and device for control of ankle monitor | |
JP2002039851A (en) | Method and device for confirming direction of sound source | |
SU1690748A1 (en) | Method and device of spatial acoustic orientation | |
EP1123637B1 (en) | Public address apparatus | |
JPS5478909A (en) | Meeting telephone unit | |
JPS58500091A (en) | electronic alarm system | |
ES2011564A6 (en) | Integral sound system for premises with a number of rooms (enclosures) | |
Jeffress | Method for the study of the localization of airborne sound | |
GB2362490A (en) | Audio alarm system |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
NUG | Patent has lapsed |